Numerical Simulation of Persistent Slip Band Formation

  • C. Schiller
  • D. Walgraef
Part of the NATO ASI Series book series (NSSB, volume 237)


During the transformation of the vein structure into the persistent slip hand structure in a copper crystal under fatigue (i.e. cyclic stress) the dislocation distribution undergoes complex microscopic changes. A roughly homogeneous distribution is converted into a periodic roll structure of many hundreds of wavelengths that crosses the crystal through its whole cross section.


Dislocation Density Mobile Dislocation Wall Distance Copper Crystal Dislocation Distribution 
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    B. Mughrabi, F. Ackermann & K. I1erz, Persistent sllpban.ds in fatigued face-centered and body-centered cubic metals, in J.T. Fong ed., Fatigue Mechanisms, Proceedings of an ASTM-NBS-NSF symposium, Kansas City, Mo., May 1978, ASTM-STP 675, pp. 6q-1o5, American Society for Testing and Materials, 1979.Google Scholar
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    D. Walgraef& E.C. Aifantis, On the formation and stability of dislocation patterns I, II, III, Int. J. Eng. Sci. 23 (1985) pp. 1351–1358, 1359–1364, 1365–1372.Google Scholar
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    G. Dee & J.S. Langer, Propagating pattern selection. Phys. Rev. Letters 50 (1983) PP- 383–386.Google Scholar

Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • C. Schiller
    • 1
  • D. Walgraef
    • 1
  1. 1.Service de Chimie PhysiqueUniversité Libre de BruxellesBruxellesBelgium

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